Influence of the MgO/CaO Sintering Additive Ratio on the Optical Properties of YAG:Cr Ceramics

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, CERAMICS Glass and Ceramics Pub Date : 2025-01-10 DOI:10.1007/s10717-025-00720-6

A. A. Kravtsov, V. E. Suprunchuk, V. A. Tarala, F. F. Malyavin, E. V. Medyanik, L. V. Tarala, D. S. Vakalov, V. A. Lapin, E. A. Brazhko

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Abstract

The influence of the content and ratio of MgO and CaO sintering additives on the optical properties of YAG:Cr³⁺ and YAG:Cr⁴⁺ ceramic materials was investigated. All samples showed high transparency at 1100 nm (more than 80%). However, in the approx. 340 nm region, the light transmittance values of the samples decreased with increasing amounts of Ca²⁺ or Mg²⁺ ions. The most intense absorption in the range of 750 – 1100 nm after annealing in air was observed in the samples containing the highest value of sintering additives. The absorption of Cr⁴⁺ cations increased with the increase of Ca/Mg content. The optimum CaO content among the investigated samples was 0.12 wt.%. Above this value, additional absorption was observed due to the formation of microdefects. The data obtained by scanning electron microscopy showed that the ceramic samples had a granular structure with grain size ranging from 1 to 10 μm. There were no significant differences in the microstructure depending on the content and type of sintering additives.

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来源期刊

Glass and Ceramics 工程技术-材料科学：硅酸盐

CiteScore

1.00

自引率

16.70%

发文量

审稿时长

6-12 weeks

期刊介绍： Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The journal''s broad coverage includes developments in the areas of silicate chemistry, mineralogy and metallurgy, crystal chemistry, solid state reactions, raw materials, phase equilibria, reaction kinetics, physicochemical analysis, physics of dielectrics, and refractories, among others.